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020 _a9789332586932
082 _a621.38195404 S775D
100 _aStallings, William
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245 0 _aData and Computer Communications
260 _aNew Delhi
_bPearson
_c2019
300 _ap.907
650 _aProtocol Architecture
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650 _aData Transmission
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650 _aInternet Protocol
_974088
942 _cDBK